For Powers P3500/Pa3500, Ramset® Sa2710, Viper, Hilti® Dx350, Dx351, Dx36M, And Dx451. A New Development Is The Addition Of A Safety Strip. When Using Standard Strip Loads, The User Must Look Inside The Tool Housing To See If It Is Loaded. The New Safety Strip Is Molded In A Special Length To Provide A Visual Indication That The Tool Is Loaded.